Examples with LdcInsnNode org.objectweb.asm.tree.LdcInsnNode used on opensource projects

Example 1 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project enumerable by hraberg.

the class ExpressionInterpreter method newOperation.

public Value newOperation(final AbstractInsnNode insn) throws AnalyzerException {
    switch(insn.getOpcode()) {
        case ACONST_NULL:
            return new ExpressionValue(createClassOrInterfaceType(Object.class.getName()), new NullLiteralExpr());
        case ICONST_M1:
            return new ExpressionValue(PRIMITIVE_INT, new UnaryExpr(new IntegerLiteralExpr("1"), UnaryExpr.Operator.negative));
        case ICONST_0:
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("0"));
        case ICONST_1:
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("1"));
        case ICONST_2:
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("2"));
        case ICONST_3:
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("3"));
        case ICONST_4:
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("4"));
        case ICONST_5:
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("5"));
        case LCONST_0:
            return new ExpressionValue(PRIMITIVE_LONG, new LongLiteralExpr("0L"));
        case LCONST_1:
            return new ExpressionValue(PRIMITIVE_LONG, new LongLiteralExpr("1L"));
        case FCONST_0:
            return new ExpressionValue(PRIMITIVE_FLOAT, new DoubleLiteralExpr("0.0f"));
        case FCONST_1:
            return new ExpressionValue(PRIMITIVE_FLOAT, new DoubleLiteralExpr("1.0f"));
        case FCONST_2:
            return new ExpressionValue(PRIMITIVE_FLOAT, new DoubleLiteralExpr("2.0f"));
        case DCONST_0:
            return new ExpressionValue(PRIMITIVE_DOUBLE, new DoubleLiteralExpr("0.0"));
        case DCONST_1:
            return new ExpressionValue(PRIMITIVE_DOUBLE, new DoubleLiteralExpr("1.0"));
        case BIPUSH:
        case SIPUSH:
            int operand = ((IntInsnNode) insn).operand;
            if (operand < 0)
                return new ExpressionValue(PRIMITIVE_INT, new UnaryExpr(new IntegerLiteralExpr("" + Math.abs(operand)), UnaryExpr.Operator.negative));
            return new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr("" + operand));
        case LDC:
            Object cst = ((LdcInsnNode) insn).cst;
            if (cst instanceof Number) {
                ExpressionValue value = null;
                if (cst instanceof Integer) {
                    value = new ExpressionValue(PRIMITIVE_INT, new IntegerLiteralExpr(cst.toString()));
                } else if (cst instanceof Float) {
                    value = new ExpressionValue(PRIMITIVE_FLOAT, new DoubleLiteralExpr(cst.toString() + "f"));
                } else if (cst instanceof Long) {
                    value = new ExpressionValue(PRIMITIVE_LONG, new LongLiteralExpr(cst.toString() + "L"));
                } else if (cst instanceof Double) {
                    value = new ExpressionValue(PRIMITIVE_DOUBLE, new DoubleLiteralExpr(cst.toString()));
                }
                if (((Number) cst).intValue() < 0) {
                    StringLiteralExpr expr = (StringLiteralExpr) value.expression;
                    expr.setValue(expr.getValue().substring("-".length()));
                    value.expression = new UnaryExpr(expr, UnaryExpr.Operator.negative);
                }
                return value;
            } else if (cst instanceof Type) {
                ClassExpr classExpr = new ClassExpr(new ReferenceType(createClassOrInterfaceType(((Type) cst).getClassName())));
                return new ExpressionValue(createClassOrInterfaceType(Class.class.getName()), classExpr);
            } else {
                return new ExpressionValue(createClassOrInterfaceType(String.class.getName()), new StringLiteralExpr(cst.toString()));
            }
        case JSR:
            throw new UnsupportedOperationException(AbstractVisitor.OPCODES[insn.getOpcode()]);
        case GETSTATIC:
            FieldInsnNode fieldNode = (FieldInsnNode) insn;
            ExpressionValue getField = (ExpressionValue) newValue(getType(fieldNode.desc));
            getField.expression = new FieldAccessExpr(new NameExpr(removeJavaLang(getObjectType(fieldNode.owner).getClassName())), fieldNode.name);
            return getField;
        case NEW:
            return newValue(Type.getObjectType(((TypeInsnNode) insn).desc));
        default:
            throw new Error("Internal error.");
    }
}

Example 2 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project bytecode-viewer by Konloch.

the class NumberNode method setNumber.

public void setNumber(int number) {
    AbstractInsnNode ain = insn();
    if (ain instanceof IntInsnNode) {
        ((IntInsnNode) insn()).operand = number;
        ((IntInsnNode) ain).operand = number;
    } else if (ain instanceof LdcInsnNode) {
        ((LdcInsnNode) insn()).cst = number;
        ((LdcInsnNode) ain).cst = number;
    }
}

Example 3 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project evosuite by EvoSuite.

the class Mutation method getDefaultInfectionDistance.

/**
 * <p>
 * getDefaultInfectionDistance
 * </p>
 *
 * @return a {@link org.objectweb.asm.tree.InsnList} object.
 */
public static InsnList getDefaultInfectionDistance() {
    InsnList defaultDistance = new InsnList();
    defaultDistance.add(new LdcInsnNode(0.0));
    return defaultDistance;
}

Example 4 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project evosuite by EvoSuite.

the class BooleanTestabilityTransformation method insertPushNull.

/**
 * Insert a call to the isNull helper function
 *
 * @param opcode
 * @param position
 * @param list
 */
public void insertPushNull(int opcode, JumpInsnNode position, InsnList list) {
    int branchId = getBranchID(currentMethodNode, position);
    logger.info("Inserting instrumentation for NULL check at branch " + branchId + " in method " + currentMethodNode.name);
    MethodInsnNode nullCheck = new MethodInsnNode(Opcodes.INVOKESTATIC, Type.getInternalName(BooleanHelper.class), "isNull", Type.getMethodDescriptor(Type.INT_TYPE, new Type[] { Type.getType(Object.class), Type.INT_TYPE }), false);
    list.insertBefore(position, new InsnNode(Opcodes.DUP));
    list.insertBefore(position, new LdcInsnNode(opcode));
    list.insertBefore(position, nullCheck);
    // list.insertBefore(position,
    // new LdcInsnNode(getBranchID(currentMethodNode, position)));
    insertBranchIdPlaceholder(currentMethodNode, position, branchId);
    MethodInsnNode push = new MethodInsnNode(Opcodes.INVOKESTATIC, Type.getInternalName(BooleanHelper.class), "pushPredicate", Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.INT_TYPE, Type.INT_TYPE }), false);
    list.insertBefore(position, push);
}

Example 5 with LdcInsnNode

use of org.objectweb.asm.tree.LdcInsnNode in project evosuite by EvoSuite.

the class BooleanTestabilityTransformation method insertControlDependencyPlaceholder.

private void insertControlDependencyPlaceholder(MethodNode mn, AbstractInsnNode insnNode) {
    Label label = new Label();
    LabelNode labelNode = new LabelNode(label);
    // BooleanTestabilityPlaceholderTransformer.addControlDependencyPlaceholder(label,
    // insnNode);
    mn.instructions.insertBefore(insnNode, labelNode);
    // instructions.insertBefore(insnNode, new LdcInsnNode(0));
    // mn.instructions.insertBefore(insnNode, new LdcInsnNode(0));
    mn.instructions.insertBefore(insnNode, new LdcInsnNode(getControlDependentBranchID(mn, insnNode)));
    mn.instructions.insertBefore(insnNode, new LdcInsnNode(getApproximationLevel(mn, insnNode)));
    logger.info("Control dependent branch id: " + getControlDependentBranchID(mn, insnNode));
    logger.info("Approximation level: " + getApproximationLevel(mn, insnNode));
}